baber/WOPTO huggingface dataset:
Patent GB-1144376-A (GB)
Title: Process for obtaining filaments of special cross-section and spinneret for use for this purpose
Inventor: STUCHLIK RENE
IPC: D01D5/253
Filed: 1966-11-07
Abstract: 1,144,376. Spinnerets. SOC. RHODIACETA. 7 Nov., 1966 [8 Nov., 1965], No. 49804/66. Heading B5B. Yarns in which most of the elementary filaments have an X cross-section, are made by dry spinning a solution of a filament-forming material in a volatile solvent through a spinneret perforated with square holes in which the drying conditions are substantially identical on two adjacent sides of each square hole. Preferably a spinneret is used in which the said square holes are so arranged that each of them has one diagonal making an angle of less than 10 degrees with the radius of the spinneret face which passes through the centre of the hole. Thus in Fig. 1 one diagonal of each hole lies on a radius of the spinneret face passing through the centre of the hole, while in Fig. 3, the holes 2 are arranged in three rings each having four holes, so that one of the diagonals of each hole coincides with a radius of the spinneret. In Fig. 4, the holes 2 and 2<SP>1</SP> are arranged along sides of a polygon concentric with the spinneret face and the holes 2 are so oriented that one of their diagonals coincides exactly with a radius of the spinneret, and the holes 2<SP>1</SP> in such a way that one of their diagonals makes an angle of 7 degrees with a radius of the spinneret. Cellulose acetate filaments may be dry spun from a solution of a secondary cellulose acetate in acetone, and cellulose tri-acetate filaments may be dry spun from a spinning solution comprising a mixture of methylene chloride and a lower aliphatic alcohol, especially methanol or ethanol. A mixture of carbon disulphide and acetone may be used as spinning solvent for polymers based on vinyl chloride. Yarns may be obtained in which at least 90% of the constituent filaments have a cross-section in the shape of an X. Examples given relate to the spinning of cellulose diacetate and triacetate.
Patent GB-1373764-A (GB)
Title: Fastener
IPC: B60J1/14
Filed: 1971-10-28
Abstract: 1373764 Linkwork MASSEY-FERGUSON Inc 28 Oct 1971 [2 Nov 1970] 50113/71 Heading F2K [Also in Division E2] An over-centre linkage for holding a window 14, hinged at its top edge, in closed or open positions comprises two links 32, 52 pivoted respectively at 46 on the window and 64 on the window frame, and joined by a common pivot 72 which may be swung to overcentre positions inside or outside the window frame.
Patent GB-1278960-A (GB)
Title: Control valve and method of manufacture
IPC: F16K27/04
Filed: 1969-10-13
Abstract: 1278960 Making valve spools CESSNA AIRCRAFT CO 13 Oct 1969 [1 Nov 1968] 50158/69 Heading B3A [Also in Division F2] A method of making a valve spool 29 to operate in a corrosive fluid and having at least one end covered with protective material comprises in sequence machining one end to a slightly reduced diameter, machining a tapering portion from the end to a land-forming portion, applying the protective material and final machining the land-forming portion to a diameter greater than the reduced diameter. The spool 29 is machined from bar stock leaving a substantially oversize basic diameter larger than a bore 19 in a body 18. Ends 30, 31 are ground to the reduced diameter and tapered surfaces 38, 39 are machined at the same time. A layer of chrome is deposited on the ends 30, 31, after which the spool may be stockpiled. When several control valves 10 are to be assembled, each spool 29 is finally machined to a land diameter closely matching the bore 19 of one of the bodies.
Patent GB-501592-A (GB)
Abstract: 501,592. Thermal switches; thermometers. CHILOWSKY, C. Aug. 27, 1937, No. 23508. Convention date, Sept. 3, 1936. [Class 38 (v)] [Also in Groups XIII and XX] A heat-sensitive relay comprises a vessel in which an electric circuit is made or broken by the variations of volume or pressure due to the .absorption in or release from active carbon of a gas or vapour, upon variation of temperature resulting more especially from electrical or optical effects. In Fig. 1 active carbon, and a gas such as CO<2> or an inert gas, the absorption of which by the carbon depends upon the temperature, are enclosed in two small containers 5 and 6 of thin glass or metal which are connected by necks 7 and 8 to the limbs of a U-tube 1 containing mercury 2. When container 5 is heated by a coil 9 gas given off from the carbon raises the pressure to depress the mercury in the left limb and complete electrical connection between electrodes 3 and 4. Porous plugs 10 and 11 prevent ingress of mercury into containers 5 and 6 while the material in container 6 compensates for changes in the surrounding temperature. In Fig. 8, the invention is applied to a switch having two bellows 34 and 35 carrying between them a moving contact 36 to engage the fixed contact 37, when there is sufficient difference of temperature between containers 5 and 6. Fig. 15 shows three switches each comprising mercury in a tube, having contacts connected in parallel across a lamp 60, and each having a pair of sensitive elements 46 with blackened silver sheets fused thereon. Radiant energy which may be from the headlights of a vehicle is focused through a lens 64 and one of the smaller lenses 63 on a sensitive element. The invention is also applied to two way switches, and switches having one or more of the following features; the second container 6 heated to give a controlled biassing effect; conical terminations to the limbs of the U-tube to ensure operation of the switch only upon large changes in temperature; contact made and broken in a gas other than the gas absorbed by the carbon; variation of pressure transmitted through a flexible diaphragm; the containers externally blackened to increase absorption of radiation; heating of the carbon pure or mixed with nonconductive powders by direct passage therethrough of current. A tilting mercury switch is also described as operated by the movement of mercury in a separate tube carried by the switch, and various dispositions of mirrors and lenses are shown to allow a switch or a number of switches to be operated by radiant energy such as daylight, or light from a film projector, or from signal lamps. The Specification as open to inspection under Sect. 91 describes also the utilization of the absorption and release of a gas or vapour from active carbon in a vessel in a temperature indicating device. Fig. 19 (Cancelled) shows an arrangement in which a gas released from active carbon in a bulb 5 moves a column of mercury 2 in a U-tube 1 and the temperature is indicated by a scale 75. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1445980-A (GB)
Title: Dry-cleaning composition and process
IPC: D06L1/04
Filed: 1972-11-01
Abstract: 1445980 Isocyanate modified polyoxyethylenes IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Oct 1973 [1 Nov 1972 9 Aug 1973] 50303/72 and 37775/73 Heading C3R [Also in Divisions C2 and C5] Reaction products are obtained from an organic isocyanate (I) and adducts of ethylene oxide with either (II) a C 8-22  aliphatic alcohol (said adduct containing 0À5-4% by wt. water) or (III) a phenol with a C 8-22  alkyl substituent. Typical examples of I are tolylene diisocyanate and diphenylmethane diisocyanate. II may be an oleyl(cetyl or tridecyl/pentadecyl alcohol. Uses.-Soil suspending agents for dry cleaning solvents.
Patent GB-1354187-A (GB)
Title: Apparatus for handling data
IPC: G11B20/14
Filed: 1971-10-29
Abstract: 1354187 Digital data storage REDACTRON CORP 29 Oct 1971 [25 Jan 1971] 50342/71 Heading G4C Digital data is in a form in which each digit period contains both Mark and Space levels, the state of a digit being indicated by the Mark- Space ratio in the digit period. This form of data may be used for recording, and renders the read and write circuits insensitive to slow variations in the speed of the record medium. The reading circuitry may include a capacitor which is charged to a level dependent on the Mark-Space ratio, or may include a reversible counter, stepped by clock pulses, the count at the end of a digit period indicating the digit state. Write circuit, Fig. 1 (not shown), for binary data includes a counter (16) fed by a high frequency clock. In the embodiment described there are 16 clock pulses in each bit period, Fig. 2 (a). The counter provides pulses at two points in the period, e.g., one may precede (d) and one may follow (e) the middle of the period. A first bi-stable (26) is set at the start of each bit period. Binary data (c) is fed to a second bi-stable (28), and dependent on the state (f) of this bi-stable the first bi-stable (26) is reset either by the first or the second of the pulses from the counter, to provide a signal (g) to the recording head. In this signal each zero bit period has a M : S ratio less than 1 and each one bit period has a M : S ratio greater than 1.  Read circuit.-The signals from the read head pass to a circuit, Fig. 3 (not shown), which develops a pulse at each positive and each negative peak. In one embodiment, Fig. 5 (not shown), the positive and negative peak pulses cause a capacitor, set to a reference level at the start of each bit period, to be charged and discharged, respectively via a constant current source. If the charge at the end of the bit period exceeds the reference level a one bit has been read, if it lies below the reference level the bit is zero. In a second embodiment, Fig. 7 (not shown), a reversible counter is stepped by a high speed clock, the direction of counting being controlled by the positive and negative peak pulses. The bit state is indicated at the end of a bit period by the state, positive or negative, of the counter. Reference is made to recording on magnetic tape and to electrostatic and photographic storage.
Patent GB-1470730-A (GB)
Title: Process for the preparation of ytterbium iii beta-diketonates
IPC: C07C49/92
Filed: 1975-12-09
Abstract: 1470730 Ytterbium betadiketonates SNAMPROGETTI SpA 9 Dec 1975 [10 Dec 1974] 50522/75 Heading C2C Ytterbium (III) beta-diketonates are prepared by reacting an anhydrous ytterbium (III) halide with a beta-diketone in the presence of gaseous ammonia and a non-aqueous solvent medium, e.g. tetrahydrofuran or an ether, ketone or ester. Examples prepare ytterbium beta-diketonates from acetylacetone, dibenzoylmethane and dipivaloylmethane.
Patent GB-1135027-A (GB)
Title: Ability testing apparatus
IPC: G09B5/02
Filed: 1965-11-29
Abstract: 1,135,027. Teaching appliances. W. P. EXTON. 29 Nov., 1965, No. 50535/65. Headings G5G and G5X. [Also in Divisions G1 and G2] Apparatus for testing a pupil's ability to respond to instruction, by requiring the pupil to place a given object on a surface at a place thereon representing any one of a set of predetermined locations, comprises means for projecting radiant energy on to the surface; means bearing images, said images representing the set of predetermined locations, for projection on to the surface; and sensing means for sensing changes of energy emanating from the surface as a result of interruption, deflection or reflection of the radiant energy by the object when placed on the surface, the condition of the sensing means when the object is placed at a location to which an image is projected being different than when the object is placed at any place to which an image is not projected. Teaching dancing.-In the embodiment of Fig. 5, a film on which is recorded a sequence of dance steps is projected by the projector 10 on to a transparent or translucent surface 26 via mirrors 35, 37 and 38. The film also includes a sound track carrying music relating to the dance steps. A student attempts to follow the sequence of steps, and each time his foot coincides with a projected step the light intensity within housing 25 will be raised by reflection of the projected light image thus activating a photocell 14 (Fig. 7, not shown), which actuates a counter or register. Thus a student upon completing a sequence of steps will make a score which can be compared with a perfect score. The sensitivity of the photocells can be varied by means of an optical strip filter, having a plurality of filter sections of varying degrees of opacity (Figs. 7 and 8, not shown). Question and answer (Fig. 12).-A question and three possible answers are projected on to a screen 80 (surface), on which are provided three bright areas X-Z corresponding to the three answers. The projector also projects a beam on to one of three photocells at T associated with projectors 85-87 which are arranged to beam infra-red or ultra-violet rays on to the areas X-Z. The projected beam corresponds to the correct answer. A student indicates his selected answer by placing an object over one of the areas X-Z, and if the correct position is selected the invisible or ultra-violet ray will be reflected into housing 81 and a photocell 14 will be activated. Piano playing.-A projector 10 projects' images of music to be played on to the keys of a key board 61, and the light is reflected to groups of photocells 65, 66 unless a pupil's fingers are correctly placed on the key board i.e. coincident with the projected images. In an alternative embodiment the keys are translucent and the projector, photocells and a mirrored surface (74) (Fig. 10, not shown) are mounted within a piano.
Patent GB-1337453-A (GB)
Title: Multiway control valve
IPC: F16K11/07
Filed: 1971-11-01
Abstract: 1337453 Valves BLOHM & VOSS AG 1 Nov 1971 [18 Dec 1970] 50587/71 Heading F2V In a multi-way control valve having an axially displaceable tubular valve 16 which moves over ports 18, 19 in a casing 11 to connect main pipe 20 with one of two branch pipes 12, 13, dovetail-section seal rings 24, 25 are located in corresponding grooves in sleeves 21, 23 and are arranged at positions remote from ports 18, 19. Seal ring 30 may be of the 0-type located in a rectangular section groove. The seals 24, 25 are retained by threaded sleeves 28, 29. Seals 24, 25, 30 may instead be located in the wall of casing.
Patent GB-1093200-A (GB)
Title: A weldable, corrosion-protecting priming
Inventor: BORKENHAGEN WOLFGANG
IPC: C09D129/14
Filed: 1966-11-14
Abstract: A weldable corrosion protection priming comprises 8-12 parts by weight of a polyvinyl butyral, 1-6 parts by weight of phenolic resin and 0.1-3 parts by weight of a rust inhibitor, together with a solvent.  The phenolic resin is preferably a novolac.  The rust inhibitor is preferably pyrogallol or hydroquinone.  The composition may also contain an ultra-violet light absorber, e.g. 2-hydroxy-4-methoxy-benzophenone. In the examples the phenolic resin is (1) a cresol-formaldehyde novolac, or (2) a phenol resol.ALSO:Articles of iron and steel are protected against corrosion by a weldable corrosion protection priming which comprises 8-12 parts by weight of polyvinyl butyral, 1-6 parts by weight of phenolic resin and 0.1-3 parts by weight of a rust inhibitor, e.g. pyrogallol or hydroquinone together with a solvent (see Division C3).
Patent GB-1029028-A (GB)
Title: Improvements in or relating to an ink fountain
IPC: B41F31/04
Filed: 1964-12-14
Abstract: 1,029,028. Inking-apparatus. KOPPERS CO. Inc. Dec. 14, 1964 [Dec. 13, 1963], No. 50919/64. Heading B6C. An ink fountain comprises a fountain roller 15, a flexible doctor blade 13 differentially settable in relation to the roller along its doctor edge by means of a plurality of set-screws 70, each of which co-operates with a rotatable cam 73, and a longitudinally extending inflatable tube 51 which when expanded displaces said edge from the differential setting and forces it uniformly against the roller to assist cleaning &c. In the embodiment of Fig. 1 (not shown), the set-screws are located at right angles to the blade and are in direct contact therewith, and in a further embodiment, Fig. 4 (not shown), the inflatable tube acts on the blade through a bearing member and is located nearer the edge thereof than the series of cams.
Patent GB-1160627-A (GB)
Title: Improvements in or relating to D.C. Electrical Machines
Inventor: WALSER RUDOLF
IPC: H02K1/14
Filed: 1967-11-09
Abstract: 1,160,627. Making dynamo-electric machines. MASCHINENFABRIK OERLIKON. 9 Nov., 1967 [18 Jan., 1967], No. 50951/67. Heading B3A. [Also in Division H2] A D.C. electric machine has a stator 1 formed with main poles 4 and commutator poles 5 and is made by stamping the slots 2, 3 out of separate laminations, stamping the rotor gap, stacking the laminations, inserting an insulating sleeve 9 into each slot and sliding prewound main and commutator coils 10, 11 into the slots. The poles each have projections 6, 7 to define a narrow mouth 12 and to hold a key 13 in position. In an alternative embodiment the commutator pole 5 is slotted to receive the end of the key and the projections omitted, Fig. 3 (not shown). The punch 15 for stamping the slots comprises two main portions 15a which define the commutator poles and one edge of each adjacent main pole. Webs 15b join the main portions to define the air gap between the rotor and the stator.
Patent GB-1019860-A (GB)
Title: Leaf spring assemblies
Inventor: RAWLINGS PETER
IPC: B60G11/107
Filed: 1964-12-16
Abstract: 1,019,860. Springs. FORD MOTOR CO. Ltd. Dec. 16, 1964, No. 51125/64. Heading F2S. One end of the upper leaf 6 of a leaf spring supporting a chassis 2 is slidable in an inverted U-shaped guide bracket having two depending legs 1a and an upper bridge portion 1b with a curved lower bearing surface, an inverted U- shaped plastics lining 3, made e.g. of polyurethane, being mounted within the bracket. The lining bridge portion 3b, narrower than the portion 1b is recessed into the latter to form a continuous bearing surface. The legs 3a of the lining are bowed inwardly of the bracket, and the leaf 6 has a hooked end 6a which coacts with a stop bush 5 mounted on a rod 4 between the bracket legs 1a to prevent withdrawal of the spring from the bracket.
Patent GB-1527714-A (GB)
Title: Material feed device plastics recovery installation including such device and method of operating such installation
IPC: B65G53/12
Filed: 1975-10-29
Abstract: 1527714 Discharging hoppers; pneumatic conveying J A WARD 29 Oct 1975 [27 Nov 1974] 51281/74 Headings B8S and B8A [Also in Division B5] In an installation for the production of plastics objects in which scrap trimmings are produced by a slitter 16b which is adjacent to an extruder 16a the scrap is pneumatically conveyed to a receptacle 1 in which the air and scrap is separated, and the latter is fed back into a hopper 15 where it is combined with fresh raw material fed to the hopper 15 from a feeder unit 17. The mixture of air and scrap is fed to the receptacle 1 at an inlet 2 and the scrap falls under gravity to the flat bottom wall 1a of the receptacle while the air exhausts from the latter through an opening 2a, a feeder blade 11 which is of curved form being driven in rotation by a shaft 8 so that the scrap is pushed towards an outlet 3 provided in the central portion of the bottom wall 1a, an auger 7 which is also driven by the shaft 8 conveying the scrap from the outlet 3 into the hopper 15. The scrap trimmings from the slitter 16b pass through two hoses 19 to a delivery pipe 21 which is supplied with air from a blower 18, and after passing through a chamber 26 the scrap trimmings pass through a comminutor 25 where it is granulated and is then fed by a further blower 28 along a delivery pipe 23a to the inlet 2.
Patent GB-1156828-A (GB)
Title: Improvements in or relating to Electrical Converter Circuits.
IPC: H02M7/523
Filed: 1966-11-16
Abstract: 1,156,828. Converting circuits; control of A.C. motors. BROWN, BOVERI & CO. Ltd. 16 Nov., 1966 [18 Nov., 1965], No. 51338/66. Headings H2F and H2J. A converting circuit for supplying a variable frequency to a load comprises a load 40, 50, 60 connected to an A.C. supply via a rectifier circuit 1. Firing controlled rectifier 17 allows the diodes 11-16 to become conductive to connect the load to the supply. The frequency applied to the load being the difference between the supply frequency and the firing pulse frequency. The controlled rectifier 17 is extinguished by a capacitor 19 in series with a saturable inductor 18. A further capacitor 71 is included to pass reactive current when the rectifier 17 is non- conductive. The load 4, 5, 6 may be the winding of a squirrel cage motor, and in order to increase the frequency range, two rectifier circuits may be employed, Fig. 4 (not shown), with their controlled rectifiers fired in antiphase. An arrangement employing three rectifier bridges is also described Fig. 5 (not shown) for producing a single phase variable frequency supply from a three-phase source. If the firing frequency is made the same as the supply frequency, a variable D.C. output may be obtained, Fig. 1 (not shown). Mercury vapour valves may be used in place of thyristors.
Patent GB-1386079-A (GB)
Title: Vehicle steering columns
IPC: B62D1/19
Filed: 1971-11-09
Abstract: 1386079 Collapsible steering columns BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 3 Nov 1972 [9 Nov 1971] 52034/71 Heading B7H A steering column 2 in a motor vehicle is arranged so that the steering wheel 1 can pivot in the event of the driver being thrown against it in order to more evenly distribute the load of the driver's body against the wheel, the outer casing 3 of the column being connected to a link 7 which is attached to the body structure 9 by a pivotal mounting 8 so that if the driver is thrown against the wheel the column can pivot about the mounting 8 to bring the wheel 1 into a more vertical position. The link 7 is pivotally connected to a bracket 4 on the casing 3 and shaped so that rotation of the link under the effect of a frontal impact on the column is prevented. The pivotal mounting 8 includes a rubber bush which rotates to dissipate energy after undergoing a predetermined angular distortion. The mounting 8 may include a plurality of energy-absorbing friction discs.
Patent GB-1164998-A (GB)
Title: Improvements in or relating to Electrical Power Distribution Systems
Inventor: WHITE KENNETH CHARLES
IPC: F21V21/00
Filed: 1965-12-08
Abstract: 1,164,998. Electrical wiring duct. ROTAFLEX (GREAT BRITAIN) Ltd. 29 Nov., 1966 [8 Dec., 1965], No. 52041/65. Heading H2E. [Also in Division E1] The electrical wiring duct of the type described in British Specification 1,000,930, having two substantially U-shaped open channels 15, 16 back-to-back with a common partition wall 17, the one channel 15 being adapted to receive fixing means for supporting the duct and the other channel 16 carrying the electrical conductors 39, 40, has an outwardly projecting flange F on each side to support tiles T or panels.